thanks for the ansr
m sorry if i irritated u ….. the expression i got from ur last words Ok…. Enough !
AMR is an audio data compression scheme. We have 14 modes of codec….. 8 for FR channel and 6 for HR channel …..i got it
but my question is why do we implement it ?
To increase the weak signal ( robustness of the n/w as it provides improvement upto S/N = 4-6 dB )
To increase the call carrying capacity as it increases or decreases the data rate using appropriate codecs depending upon the RF conditions …. as u told link adaptation …..